All tests by jandark with the online test builder (7 tests)
1. Pretérito perfecto compuesto (2860 candidates) 
2. Imperfect or Present tense (2270 candidates)
3. Ser or Estar (1552 candidates)
4. También / tampoco (4172 candidates)
5. Comparison words: más ,menos ,mayor ,menor ,mejor, peor (10777 candidates) 
6. Since, for, while, during, ago (3202 candidates) 
7. For, since, while, during (7735 candidates)
1.
Pretérito perfecto compuesto (2860 candidates) 2.
Imperfect or Present tense (2270 candidates) 3.
Ser or Estar (1552 candidates) 4.
También / tampoco (4172 candidates) 5.
Comparison words: más ,menos ,mayor ,menor ,mejor, peor (10777 candidates) 6.
Since, for, while, during, ago (3202 candidates) 7.
For, since, while, during (7735 candidates) 